/*      $NetBSD: nfsdport.h,v 1.1.1.2 2016/11/18 07:49:12 pgoyette Exp $        */
/*-
* Copyright (c) 2009 Rick Macklem, University of Guelph
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* FreeBSD: head/sys/fs/nfs/nfsdport.h 283635 2015-05-27 22:00:05Z rmacklem
* $NetBSD: nfsdport.h,v 1.1.1.2 2016/11/18 07:49:12 pgoyette Exp $
*/

/*
* These macros handle nfsvattr fields. They look a bit silly here, but
* are quite different for the Darwin port.
*/
#define NFSVNO_ATTRINIT(n)              (VATTR_NULL(&((n)->na_vattr)))
#define NFSVNO_SETATTRVAL(n, f, v)      ((n)->na_##f = (v))
#define NFSVNO_SETACTIVE(n, f)
#define NFSVNO_UNSET(n, f)              ((n)->na_##f = VNOVAL)
#define NFSVNO_NOTSETMODE(n)            ((n)->na_mode == ((mode_t)VNOVAL))
#define NFSVNO_ISSETMODE(n)             ((n)->na_mode != ((mode_t)VNOVAL))
#define NFSVNO_NOTSETUID(n)             ((n)->na_uid == ((uid_t)VNOVAL))
#define NFSVNO_ISSETUID(n)              ((n)->na_uid != ((uid_t)VNOVAL))
#define NFSVNO_NOTSETGID(n)             ((n)->na_gid == ((gid_t)VNOVAL))
#define NFSVNO_ISSETGID(n)              ((n)->na_gid != ((gid_t)VNOVAL))
#define NFSVNO_NOTSETSIZE(n)            ((n)->na_size == VNOVAL)
#define NFSVNO_ISSETSIZE(n)             ((n)->na_size != VNOVAL)
#define NFSVNO_NOTSETATIME(n)           ((n)->na_atime.tv_sec == VNOVAL)
#define NFSVNO_ISSETATIME(n)            ((n)->na_atime.tv_sec != VNOVAL)
#define NFSVNO_NOTSETMTIME(n)           ((n)->na_mtime.tv_sec == VNOVAL)
#define NFSVNO_ISSETMTIME(n)            ((n)->na_mtime.tv_sec != VNOVAL)

/*
* This structure acts as a "catch-all" for information that
* needs to be returned by nfsd_fhtovp().
*/
struct nfsexstuff {
       int     nes_exflag;                     /* export flags */
       int     nes_numsecflavor;               /* # of security flavors */
       int     nes_secflavors[MAXSECFLAVORS];  /* and the flavors */
};

/*
* These are NO-OPS for BSD until Isilon upstreams EXITCODE support.
* EXITCODE is an in-memory ring buffer that holds the routines failing status.
* This is a valuable tool to use when debugging and analyzing issues.
* In addition to recording a routine's failing status, it offers
* logging of routines for call stack tracing.
* EXITCODE should be used only in routines that return a true errno value, as
* that value will be formatted to a displayable errno string.  Routines that
* return regular int status that are not true errno should not set EXITCODE.
* If you want to log routine tracing, you can add EXITCODE(0) to any routine.
* NFS extended the EXITCODE with EXITCODE2 to record either the routine's
* exit errno status or the nd_repstat.
*/
#define NFSEXITCODE(error)
#define NFSEXITCODE2(error, nd)

#define NFSVNO_EXINIT(e)                ((e)->nes_exflag = 0)
#define NFSVNO_EXPORTED(e)              ((e)->nes_exflag & MNT_EXPORTED)
#define NFSVNO_EXRDONLY(e)              ((e)->nes_exflag & MNT_EXRDONLY)
#define NFSVNO_EXPORTANON(e)            ((e)->nes_exflag & MNT_EXPORTANON)
#define NFSVNO_EXSTRICTACCESS(e)        ((e)->nes_exflag & MNT_EXSTRICTACCESS)
#define NFSVNO_EXV4ONLY(e)              ((e)->nes_exflag & MNT_EXV4ONLY)

#define NFSVNO_SETEXRDONLY(e)   ((e)->nes_exflag = (MNT_EXPORTED|MNT_EXRDONLY))

#define NFSVNO_CMPFH(f1, f2)                                            \
   ((f1)->fh_fsid.val[0] == (f2)->fh_fsid.val[0] &&                    \
    (f1)->fh_fsid.val[1] == (f2)->fh_fsid.val[1] &&                    \
    bcmp(&(f1)->fh_fid, &(f2)->fh_fid, sizeof(struct fid)) == 0)

#define NFSLOCKHASH(f)                                                  \
       (&nfslockhash[nfsrv_hashfh(f) % nfsrv_lockhashsize])

#define NFSFPVNODE(f)   ((struct vnode *)((f)->f_data))
#define NFSFPCRED(f)    ((f)->f_cred)
#define NFSFPFLAG(f)    ((f)->f_flag)

#define NFSNAMEICNDSET(n, c, o, f)      do {                            \
       (n)->cn_cred = (c);                                             \
       (n)->cn_nameiop = (o);                                          \
       (n)->cn_flags = (f);                                            \
   } while (0)

/*
* A little bit of Darwin vfs kpi.
*/
#define vnode_mount(v)  ((v)->v_mount)
#define vfs_statfs(m)   (&((m)->mnt_stat))

#define NFSPATHLEN_T    size_t

/*
* These are set to the minimum and maximum size of a server file
* handle.
*/
#define NFSRV_MINFH     (sizeof (fhandle_t))
#define NFSRV_MAXFH     (sizeof (fhandle_t))

/* Use this macro for debug printfs. */
#define NFSD_DEBUG(level, ...)  do {                                    \
               if (nfsd_debuglevel >= (level))                         \
                       printf(__VA_ARGS__);                            \
       } while (0)